Lib/keyword.py

   1 #! /usr/bin/env python
   2
   3 """Keywords (from "graminit.c")
   4
   5 This file is automatically generated; please don't muck it up!
   6
   7 To update the symbols in this file, 'cd' to the top directory of
   8 the python source tree after building the interpreter and run:
   9
  10     python Lib/keyword.py
  11 """
  12
  13 __all__ = ["iskeyword", "kwlist"]
  14
  15 kwlist = [
  16 #--start keywords--
  17         'and',
  18         'assert',
  19         'break',
  20         'class',
  21         'continue',
  22         'def',
  23         'del',
  24         'elif',
  25         'else',
  26         'except',
  27         'exec',
  28         'finally',
  29         'for',
  30         'from',
  31         'global',
  32         'if',
  33         'import',
  34         'in',
  35         'is',
  36         'lambda',
  37         'not',
  38         'or',
  39         'pass',
  40         'print',
  41         'raise',
  42         'return',
  43         'try',
  44         'while',
  45         'yield',
  46 #--end keywords--
  47         ]
  48
  49 kwdict = {}
  50 for keyword in kwlist:
  51     kwdict[keyword] = 1
  52
  53 iskeyword = kwdict.has_key
  54
  55 def main():
  56     import sys, re
  57
  58     args = sys.argv[1:]
  59     iptfile = args and args[0] or "Python/graminit.c"
  60     if len(args) > 1: optfile = args[1]
  61     else: optfile = "Lib/keyword.py"
  62
  63     # scan the source file for keywords
  64     fp = open(iptfile)
  65     strprog = re.compile('"([^"]+)"')
  66     lines = []
  67     while 1:
  68         line = fp.readline()
  69         if not line: break
  70         if line.find('{1, "') > -1:
  71             match = strprog.search(line)
  72             if match:
  73                 lines.append("        '" + match.group(1) + "',\n")
  74     fp.close()
  75     lines.sort()
  76
  77     # load the output skeleton from the target
  78     fp = open(optfile)
  79     format = fp.readlines()
  80     fp.close()
  81
  82     # insert the lines of keywords
  83     try:
  84         start = format.index("#--start keywords--\n") + 1
  85         end = format.index("#--end keywords--\n")
  86         format[start:end] = lines
  87     except ValueError:
  88         sys.stderr.write("target does not contain format markers\n")
  89         sys.exit(1)
  90
  91     # write the output file
  92     fp = open(optfile, 'w')
  93     fp.write(''.join(format))
  94     fp.close()
  95
  96 if __name__ == "__main__":
  97     main()